Appendix A: DSP Requirements for TDM Plug-ins
127
Multi-Mono and Multi-Channel DigiRack Plug-ins
Plug-ins used in multi-mono format on greater-than-stereo tracks require one mono instance per
channel of the multi-channel audio format. A multi-mono EQ used on a 5.1 format track, for exam-
ple, requires six mono instances since there are six audio channels in the 5.1 format. Because multi-
channel versions of the Compressor II, Limiter II, and Expander/Gate II plug-ins are available for use
on greater-than-stereo tracks, separate instance counts are given for those configurations.
Table 2. Theoretical maximum instances of real-time TDM plug-ins per DSP chip for a Pro Tools HD Core and HD
Process card at 48 kHz**
Plug-in
LCR
Quad
&
LCRS
5.0
5.1 &
6.0
6.1 &
7.0
7.1
DSP Chips per
HD Card
DigiRack Pitch
partial
partial
partial
partial
partial
partial
9
D-Verb
partial
partial
partial
partial
partial
partial
9
Compressor/Limiter III
3
3
2
2
2
2
9
Expander/Gate III
3
3
2
2
2
2
9
De-Esser III
Mod Delay I (short)
14
11
8
7
6
5
9
Mod Delay I (slap)
10
8
6
5
4
4
9
Mod Delay I (medium)
5
4
3
2
2
2
9
Mod Delay I (long)
partial
partial
partial
partial
partial
partial
9
Mod Delay II (short)
14
11
8
7
6
5
9
Mod Delay II (slap)
10
8
6
5
4
4
9
Mod Delay II (medium)
5
4
3
2
2
2
9
Mod Delay II (long)
2
2
1
1
1
1
9
Mod Delay II (extra
long)
partial
partial
partial
partial
partial
partial
9
Dither
12
9
7
6
5
4
9
POW-r Dither
3
2
1
1
2
1
9
Time Adjuster (short)
30
22
18
15
13
11
9
Summary of Contents for DigiRack
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